| Application Type | Bond |
|---|---|
| 1 Part or 2 Part | 1 Part |
| Material Form | Tape |
| Substrate | Aluminum, Metals, Plastics, Stainless Steel |
| Manufacturer | 3M |
| Chemistry | Modified Acrylic, Acrylic Foam (closed cell) |
| Cure Method | Pressure Sensitive |
| Color | Black |
| Relative Solvent Resistance | Chemical Resistance: Excellent solvent resistance |
| High Temperature Resistance (°C) | 149, 93 |
| Other Resistance | Resistance to plasticizer, Resistance to migration |
| Density (g/cm³) | 0.800 |
| Key Specifications | ASTM (American Standard Test Method): Meets NBS Smoking Density ASTM F814; Meets NBS Smoking Density ASTM E662, Meets FAR 25.853 (a) 12 second Vertical Burn Appendix F, Part 1 (a) (ii); UL746C recognition |
Clean: Most substrates are best prepared by cleaning with a 50:50 mixture of isopropyl alcohol (IPA*) and water prior to applying 3M™ VHB™ Tapes.
Exceptions to the general procedure that may require additional surface preparation include: Heavy Oils: A degreaser or solvent-based cleaner may be required to remove heavy oil or grease from a surface and should be followed by cleaning with IPA/water.
Abrasion: Abrading a surface, followed by cleaning with IPA/water, can remove heavy dirt or oxidation and can increase surface area to improve adhesion.
Adhesion Promoters: Priming a surface can significantly improve initial and ultimate adhesion to many materials such as plastics and paints.
Porous surfaces: Most porous and fibered materials such as wood, particleboard, concrete, etc. need to be sealed to provide a unified surface.
Unique Materials: Special surface preparation may be needed for glass and glass-like materials, copper and copper containing metals, and plastics or rubber that contain components that migrate (e.g. plasticizers).
Refer to 3M Technical Bulletin “Surface Preparation for 3M™ VHB™ Tape Applications” for additional details and suggestions. (70-0704-8701-5)
*Note: These cleaner solutions contain greater than 250 g/l of volatile organic compounds (VOC). Please consult your local Air Quality Regulations to be sure the cleaner is compliant. When using solvents, be sure to follow the manufacturer’s precautions and directions for use when handling such materials.
Ideal application temperature range is 70°F to 100°F (21°C to 38°C). Pressure sensitive adhesives use viscous flow to achieve substrate contact area.
Note: Initial tape application to surfaces at temperatures below these suggested minimums is not recommended because the adhesive becomes too firm to adhere readily. However, once properly applied, low temperature holding is generally satisfactory.
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| Peel Strength | Type | Substrate | Test Time | Test Temperature | Test Method |
|---|---|---|---|---|---|
| 20 (lb./in.) | 90° Peel Adhesion | stainless steel | 4,320 min | 20 to 25°C | Based on ASTM D3330 -To stainless steel, room temperature, jaw speed 12 in/min (304.8 mm/min). Average force to remove is measured. 72 hour dwell. |
| High |
| Tensile Strength | Type | Substrate | Test Time | Test Temperature | Test Method |
|---|---|---|---|---|---|
| 100 psi | T-Block Tensile | Aluminum | 4,320 min | 20 to 25°C | ASTM D-897 - To aluminum, room temperature, 1 in2 (6.45 cm2), jaw speed 2 in/min (50 mm/min.) Peak force to separate is measured. 72 hour dwell. |
| High |
| Shear Strength | Type | Substrate | Test Time | Test Temperature | Test Method |
|---|---|---|---|---|---|
| 100 psi | Dynamic Overlap Shear | stainless steel | 259,200 sec | 20 to 25°C | ASTM D-1002 - To stainless steel, room temperature, 1 in2 (6.45 cm2 ), jaw speed 0.5 in/min (12.7 mm/min) Peak force to separate is measured. 72 hour dwell. |
| 1000 (g/0.5 sq. in.) | Static shear strength | stainless steel | 600,000 sec | 22°C | ASTM D3654 - To stainless steel, tested at various temperatures and gram loadings. 0.5 in2 (3.22 cm2). Will hold listed weight for 10,000 minutes (approximately 7 days). Conversion: 1500 g/0.5 in2 equals 6.6 lb/in2; 500 g/0.5 in2 = 2.2 lb/in2. |
| 350 (g/0.5 sq. in.) | Static shear strength | stainless steel | 600,000 sec | 66°C | ASTM D3654 - To stainless steel, tested at various temperatures and gram loadings. 0.5 in2 (3.22 cm2). Will hold listed weight for 10,000 minutes (approximately 7 days). Conversion: 1500 g/0.5 in2 equals 6.6 lb/in2; 500 g/0.5 in2 = 2.2 lb/in2. |
| 250 (g/0.5 sq. in.) | Static shear strength | stainless steel | 600,000 sec | 93°C | ASTM D3654 - To stainless steel, tested at various temperatures and gram loadings. 0.5 in2 (3.22 cm2). Will hold listed weight for 10,000 minutes (approximately 7 days). Conversion: 1500 g/0.5 in2 equals 6.6 lb/in2; 500 g/0.5 in2 = 2.2 lb/in2. |
| High |
| High Temperature Resistance | Test Method |
|---|---|
| 149°C | Short Term Temperature Tolerance - No change in room temperature dynamic shear properties following 4 hours conditioning at indicated temperature with 100 g/static load. (Represents minutes, hours in a process type temperature exposure). |
| 93°C | Long Term Temperature Tolerance - Maximum temperature where tape supports at least 250 g load per 0.5 in2 in static shear for 10,000 minutes. (Represents continuous exposure for days or weeks). |
| Dielectric Constant | Test Method |
|---|---|
| 2.14 | at 1 kHz , ASTM D150 |
| 1.95 | at 1MHz, ASTM D150 |
| Dielectric Strength | Test Method |
|---|---|
| 455 V/mil | Breakdown, ASTM D140 |
| Dissipation Factor | Test Method |
|---|---|
| 0.00650 | at 1 kHz , ASTM D150 |
| 0.05060 | at 1MHz, ASTM D150 |
| Surface Resistivity | Test Method |
|---|---|
| >10(16) (Ohm/sq) | ASTM D257 |
| Volume Resistivity | Test Method |
|---|---|
| 2.5e14 (Ohm-cm) | ASTM D257 |
| Modulus | Temperature | Test Method |
|---|---|---|
| 3e5 (Pa) | 25°C | Shear Modulus, 1 Hz |
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